[INFO] fetching crate ibflex 1.3.0...
[INFO] checking ibflex-1.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ibflex 1.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ibflex 1.3.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibflex 1.3.0
[INFO] finished tweaking crates.io crate ibflex 1.3.0
[INFO] tweaked toml for crates.io crate ibflex 1.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ibflex 1.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cli_runner v0.2.1
[INFO] [stderr]   Downloaded test-log v0.2.12
[INFO] [stderr]   Downloaded is-terminal v0.4.8
[INFO] [stderr]   Downloaded serde-xml-rs v0.6.0
[INFO] [stderr]   Downloaded as-symbols v0.5.0
[INFO] [stderr]   Downloaded relative-path v1.9.0
[INFO] [stderr]   Downloaded rust_decimal v1.32.0
[INFO] [stderr]   Downloaded rustix v0.38.1
[INFO] [stderr]   Downloaded rustix v0.37.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcf43370b69862f6fedbda6596973c37d60755b65cf975e31b927bff5e71c5a6
[INFO] running `Command { std: "docker" "start" "-a" "bcf43370b69862f6fedbda6596973c37d60755b65cf975e31b927bff5e71c5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcf43370b69862f6fedbda6596973c37d60755b65cf975e31b927bff5e71c5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf43370b69862f6fedbda6596973c37d60755b65cf975e31b927bff5e71c5a6", kill_on_drop: false }`
[INFO] [stdout] bcf43370b69862f6fedbda6596973c37d60755b65cf975e31b927bff5e71c5a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2894222be271a1184b468ba4f36cc592efbb95b1da2b123ebaaa65dd9dcfc4f3
[INFO] running `Command { std: "docker" "start" "-a" "2894222be271a1184b468ba4f36cc592efbb95b1da2b123ebaaa65dd9dcfc4f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling rustix v0.38.1
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking is-terminal v0.4.8
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]    Compiling rust_decimal v1.32.0
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]     Checking clap_builder v4.4.4
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking bstr v1.5.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking predicates v3.0.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking xml-rs v0.8.14
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking assert_cmd v2.0.12
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking cli_runner v0.2.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling relative-path v1.9.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking clap v4.4.4
[INFO] [stderr]    Compiling test-log v0.2.12
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde-xml-rs v0.6.0
[INFO] [stderr]     Checking as-symbols v0.5.0
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking ibflex v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.83s
[INFO] running `Command { std: "docker" "inspect" "2894222be271a1184b468ba4f36cc592efbb95b1da2b123ebaaa65dd9dcfc4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2894222be271a1184b468ba4f36cc592efbb95b1da2b123ebaaa65dd9dcfc4f3", kill_on_drop: false }`
[INFO] [stdout] 2894222be271a1184b468ba4f36cc592efbb95b1da2b123ebaaa65dd9dcfc4f3